feat: bootstrap repo — enforcement layer + #685 perf capture

Enforcement (check-rules/hooks/shellcheck) per ADOPTING pattern; perf/ SoR from the #685 session (memcensus, pg role-caps SQL, applied sysctl, planned daemon.json); questions-v1 (API token + dockerd window asks). Meat + verification: https://projects.knownelement.com/issues/727#note-3913
2026-09-02 18:42:46 -05:00
parent 4d5c504534
commit 0e67f17112
18 changed files with 1049 additions and 2 deletions
@@ -0,0 +1,22 @@
+-- perf/pg-role-caps.sql — platform Postgres role caps + scaling, tsys-cloudron [#685]
+--
+-- Applied live 2026-09-02 (canary-first: booking.roguetechnologies.net alone,
+-- verified 61 -> 10 conns + app 200, then the rest). This file is the
+-- idempotent re-apply SoR for IaC. Narrative + measurements: Discourse t/316.
+-- Rollback (instant, no restarts): ALTER ROLE <username> CONNECTION LIMIT -1;
+--
+-- Run inside the postgresql container:
+--   docker exec -i postgresql su - postgres -c 'psql' < perf/pg-role-caps.sql
+--
+-- Re-run safe: the \gexec block only caps app roles (rolname LIKE 'user%')
+-- still at -1, so new apps get the default 20-cap as they are added.
+-- Also already persisted (postgresql.auto.conf, survives restarts):
+--   ALTER SYSTEM SET shared_buffers = '2GB';  -- needed the two 18:0x CDT restarts
+
+SELECT 'ALTER ROLE ' || rolname || ' CONNECTION LIMIT 20;'
+FROM pg_roles WHERE rolname LIKE 'user%' AND rolconnlimit = -1
+\gexec
+ALTER SYSTEM SET max_connections = 700;
+ALTER SYSTEM SET idle_in_transaction_session_timeout = '15min';
+SELECT rolname, rolconnlimit FROM pg_roles WHERE rolconnlimit <> -1 ORDER BY rolconnlimit, rolname;
+SHOW max_connections;